Table 1 Descriptions of the CMR sequences employed in the patient study
Sequence | T2 MAPPING | T1ρ MAPPING | LGE |
|---|---|---|---|
Acquisition | Non-selective T2-prepared bSSFP | Non-selective T1ρ-prepared bSSFP | Non-selective IR GRE |
Magnetic field, Tesla | 1.5 | 1.5 | 1.5 |
Post-contrast | No | No | Yes |
Acceleration | GRAPPA 2 | GRAPPA 2 | GRAPPA 2 |
Reconstructed resolution, mm2 | 1.9 × 1.9 | 1.4 × 1.4 | 1.5 × 1.5 |
Slice thickness, mm | 8 | 8 | 4 |
Number of LV slices, range | 3 | 3 | 11–16 |
ECG triggering (RR) | 3 | 3 | 2 |
TR/TE, msec | 2.5/1.1 | 2.7/1.2 | 3.9/1.7 |
Bandwidth, Hz/pixel | 1184 | 1150 | 362 |
Flip angle, degrees | 70 | 70 | 10 |
Free breathing | No | No | No |